Fe/MCM-41 as a promising heterogeneous catalyst for ozonation of p-chlorobenzoic acid in aqueous solution

被引：14

作者：

Huang, Rui Huan ^{[1
]}

Liu, Jie ^{[1
]}

Li, Lai Sheng ^{[1
]}

Zhang, Qiu Yun ^{[1
]}

Zeng, Li Xuan ^{[1
]}

Lu, Ping ^{[1
]}

机构：

[1] S China Normal Univ, Sch Chem & Environm, Guangzhou 510006, Guangdong, Peoples R China

来源：

CHINESE CHEMICAL LETTERS | 2011年 / 22卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Fe/MCM-41; Catalytic zonation; p-Chlorobenzoic acid; TOC; ACTIVATED CARBON; MESOPOROUS MATERIALS; MCM-41; WATER; OXIDE; PHTHALATE;

D O I：

10.1016/j.cclet.2010.11.037

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Mesoporous MCM-41 and Fe loaded MCM-41 (Fe/MCM-41), which were successfully prepared by a hydrothermal method and a dipping method respectively, were applied as heterogeneous catalysts for zonation of p-chlorobenzoic acid (p-CBA) in aqueous solution. MCM-41 and Fe/MCM-41 were characterized by XRD, FT-IR and diffuse reflectance UV-vis (DR-UV-vis) techniques. The presence of either MCM-41 or Fe/MCM-41 improves p-CBA and total organic carbon (TOC) removal efficiency compared to zonation alone. Under the experimental condition, TOC removal rate of Fe/MCM-41/O(3) process is over 63.5% at 60 min oxidation time, 44.5% using MCM-41 as catalyst, only 37.7% with ozonation alone. The presence of turt-butanol (TBA) in the Fe/MCM-41/ 03 process indicated that the oxidation mechanism of p-CBA occurs via OH in the liquid bulk. And Fe/MCM-41 is a promising catalyst. (C) 2010 Lai Sheng Li. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.

引用

页码：683 / 686

页数：4

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